Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".

Hello Fred,
Thank you for your reply: much appreciated really.
Yes: your demo works perfectly. My command also works for most files but not all: specifically some thin portrait-format photos generate the error.